,,,,,,~$@@                                          @@$~,,,,,,
,,~†$*@@##                                          ##@@*$†~,,
,,~†$*@@@#                                          #@@@*$†~,,
,,,,,,~$@@                                          @@$~,,,,,,
,,~†$*@@@#                                          #@@@*$†~,,
,,~†$*@@@@                   rails                  @@@@*$†~,,
,,,,,,†$$@                                          @$$†,,,,,,
,,~†$*@@@@                                          @@@@*$†~,,
,,~†$*@@@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@@@*$†~,,
,,~†$*@@@@                                          @@@@*$†~,,
,,~$*@@@## @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ##@@@*$~,,
,,~†$*@@##                                          ##@@*$†~,,
,,~†$*@@@#                                          #@@@*$†~,,
,,~†††$**@ trains  are  so  constructed  that  they @**$†††~,,
,,~†$*@@@@ have to follow a set path. this  path is @@@@*$†~,,
,,~†$*@@@# called  a "railway",  which is comprised #@@@*$†~,,
,,,,~$$*@@ of two metal  rails, hence its nickname. @@*$$~,,,,
,,,,,†*@@@                                          @@@*†,,,,,
,,~†$*@@@# because  the  low friction  between  the #@@@*$†~,,
,,,,,,,~$@ wheels  of the train and the rail metal, @$~,,,,,,,
,,~†$*@@@@ there  are limits for  how acute a curve @@@@*$†~,,
,,~†$*@@@@ can be,  and  even more  so for how much @@@@*$†~,,
,,~†$*@@@@ the  ground  under  the  rails   can  be @@@@*$†~,,
,,~~~~$@@@ sloped. thus a railway is  often not led @@@$~~~~,,
,,~†$*@@@@ on top of  hills, rather through them in @@@@*$†~,,
,,~†$**@@@ tunnels   (if  they   are   large),   or @@@**$†~,,
,,~†$*@@@@            artificial chasms.            @@@@*$†~,,
,,,~~†*@@@                                          @@@*†~~,,,
,,,,,~$@@@ there will be trees on the  side of  the @@@$~,,,,,
,,~†$*@@@# rails, but  not  too close, or they will #@@@*$†~,,
,,~~~†$*@@ be  cut  down by  the  railway janitors. @@*$†~~~,,
,,~†$*@@@# there  will be  plains,  and  bodies  of #@@@*$†~,,
,,,,,,~†*@                  water.                  @*†~,,,,,,
,,~††$$@@@                                          @@@$$††~,,
,,,,,,,~$@ trains  go  by day and by  night.  along @$~,,,,,,,
,,~†$*@@@@      the way, there is information       @@@@*$†~,,
,,~†$*@@@# scattered, often put  on  top of  poles, #@@@*$†~,,
,,,,,,†$@@ to be interpreted by the  train drivers. @@$†,,,,,,
,,~†$*@@@# different  parts  of  the  railway  have #@@@*$†~,,
,,~†$*@@@@         different speed limits.          @@@@*$†~,,
,,,,,†$$*@                                          @*$$†,,,,,
,,~†$*@@@@ sometimes, trains have  to stop and wait @@@@*$†~,,
,,~†$*@@@@ for something  to happen, far away. this @@@@*$†~,,
,,~†$*@@@# is  signaled  by  red  or  green lights. #@@@*$†~,,
,,,,,~†$@@                                          @@$†~,,,,,
,,~†$@@@##                 @@@@@@@@                 ##@@@$†~,,
,,~†$*@@@#                                          #@@@*$†~,,
,,,,,~$$@@ many people  follow the  rails by  foot. @@$$~,,,,,
,,,,,~††$@ often this  proves  to  be  the  shorter @$††~,,,,,
,,,,~$**@@ path  between two  points.  however this @@**$~,,,,
,,~†$*@@@@ is  frowned  upon,  and   very  impolite @@@@*$†~,,
,,~†$*@@@@         toward the train drivers!        @@@@*$†~,,
,,~†$*@@@@                                          @@@@*$†~,,
,,~†$*@@@@                                          @@@@*$†~,,
,,,,,,~†*@                                          @*†~,,,,,,
,,~†$*@@@#                                          #@@@*$†~,,
,,~†$*@@@@                                          @@@@*$†~,,
,,~†$*@@##                                          ##@@*$†~,,